Bolster.



J. Ml ROI-ILFING.A

BOLSTBR.

APPLICATION FILED MAY 24, 1910.

Patented July 26, 1910u rHE Nomels Flrsks ca., wAsmNcrnN, u c4 UNITED STATES PATENT oir-Fien.

JOI-IN M. ROI-ILFING, OF ST. LOUIS, MISSOURI, .ASSIG-NOR TO AMERICAN CAR AND" FOUNDRYVCOMPANY, OF ST. LOUIS, MISSOURI, A CORPORATION OF NEW' JERSEY.

BOLSTER.

l Specification of Letters Patent. Patented JtilyA 26, 1910'.

Application led` May 24, 1910. Serial No. 563,212.

To all whom t may concern:

Be it known that I, JOHN ROHLFING,

citizen ofthe United States, have invented certain new and useful vImprovements in Bol-sters, .ofwhich the following is a full, clear, 'and 'exact description, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had tothe accompanying drawings, which illustrate the preferred. form 'of the invention, though it is t`o be understood that the invention is not limited to the exact details of construction shown and described,

art.

In said drawings: Figure l is a top plan the present invention. F ig. 2 is a` view in side elevation thereof. Fig. 3 is an end view of the same. Fig. 4 is a transverse, vertical central section therethrough.

Referring to the details, A and B are up- .per and lower channels respectively connected together at their ends by rivets passed through the lapping flanges of the channels,'the two channels opening toward each other and the flanges of the lower channels being preferably relatively wider than the flanges of the upper channel. Lower channel B is depressed intermediate its length so as to be spread from the upper channel, and, to increase the spacing of the channels at the central point, the upper channel may be bent upwardly intermediate its length. The flanges of the lower channel are severed transversely intermediate the center and ends and split from the web of the channel longitudinally thereof, and the intermediate portions are bent edgewise upwardly forming the central struts l, l, riveted at their upper ends to the flanges of the channel A, the outer-portions of the flanges being also split from the web of channel B a relatively short distance longitudinally thereof and bent edgewise upwardly and having their upper ends riveted to the flanges of the channel A and forming auxiliary or intermediate struts 2, 2.

When utilized as a truclrbolster the structure is provided with a center bearing 3 mounted on channel A and with side bearings 4, 4, also mounted thereon, and is also zflanges 5, 5, fixed to the. ends of the flanges .of member B. Obviously, for other forms residing at St.'Louis, Missouri, and being a of bolster other detail attachments will be provided as found necessary or desirable.

It is to be noted, as among thek advantages gained by the present improvement, is the trussed type of bolster may be produced which unites lightness in weight, strength and simplicity in construction with a relatively few parts. as it is obvious that various modifications thereof will occur to persons skilled in the 1 W iat I claim is l. In a bolster, the combination of upper and lower channels,:a flange of one being formed into a strut connecting the channels. view of a bolster embodying the `features of 2. In a bolster', the combination of upper `and lower channels, the flanges of one of the channels being formed into struts connecting the channels.

3. In a bolster, the combination of upper and lower channels, a flange of one being formed into a central strut connecting the channels.

t. In a bolster, the combination ofupper and lower channels, the flanges of one of the channels being formed into central struts connecting the channels.

5. In a bolster, the combination of upper and lower channels, a flange of one being formed into central struts connecting the channels. l

6. In a bolster, the combination of flanged stress members, a iange of one of said members being formed into a strut connecting the members.

7. In a bolster, the combination of flanged stress members, a portion of the flange of one of said members being split longitudil nally and bent edgewise and forming a strut connected to the other member.

8. In a bolster, the combination of liaiiged stress members, a flange of one of the members being severed at points intermediate the center and ends and split from the said member longitudinally for a distance at each side of the center, both of the split portions being bent edgewise into struts connected to the other stress member.

9. In a bolster, the combination of flanged stress members, a flange of one of the members being severed at points intermediate the center and ends and split longitudinally at both sides of the center from the points of severance toward the center, and both severed portions of the flange being bent edgeWise toward the center and forming struts extending to the other stress member.

10. In a bolster, the combination of flanged stress members, a flange of one of the members being severed at points intermediate the center and ends and being split from the stress member longitudinally in a direction from the points of severance toward the respective ends and bent into intermediate struts extending to the other stress member.

11. In a bolster, the combination of flanged stress members, a flange of one of the members being severed at points intermediate the center and ends `and being split from the stress member longitudinally in a direction from the points of severance toward the respective ends and bent edgeWise into intermediate struts extending to the other stress member.

l2. In a bolster, the combination of flanged stress members, a flange of one of the members being severed .intermediate its length and split from the respective stress member longitudinally thereof and bent toward the other stress member for forming a strut.

13. In a bolster, the combination of flanged stress members, a flange of one of the stress members being split longitudinally from the respective stress member and bent toward the other stress member for forming a strut.

14. In a bolster7 the combination of chan nel stress members, a flange of one of the channels being severed and split from the Web longitudinally thereof and bent toward the other channel for forming a strut.

15. In a bolster, the combination of channel stress members, the flanges of one of the stress members being severed and split from the web longitudinally thereof and bent to Ward the other channel for forming struts.

16. In a bolster, the combination of channel stress members, the flanges of one of the stress members being severed and split from the web longitudinally thereof and bent edgewise toward the other channel for forming struts.

17. In a bolster, the combination of channel stress members, the flan es of one of said members being split rom the web thereof and bent toward the other stress member for forming a strut.

In witness whereof I have hereunto set my hand in the presence of two Witnesses.

JOHN M. ROHLFING.

Witnesses:

CHARLOTTE MrrzE, OSCAR I-Iocnnne. 

